https://www.ibm.com/docs/en/db2/11.5.x?topic=constructors-db2datetimeint-year-int-month-int-day-int-hour-int-minute-int-second-int-microsecond
DB2DateTime(int year, int month, int day, int hour, int minute, int second, int microsecond)...
Initializes a new DB2DateTime structure with the specified integer values.
year month dayinthourminutesecond
https://www.boost.org/doc/libs/1_70_0/doc/html/boost/date_time/year_month_day_base.html
Struct template year_month_day_base
year month daystructtemplatebase
https://www.boost.org/doc/libs/1_53_0/doc/html/boost/date_time/year_month_day_base.html
Struct template year_month_day_base
year month daystructtemplatebase